Multiple-wire-drawing machine.



No. 863,149. PAIENTED AUG. 13, 1-907.

s. BJUHR. MULTIPLE WIRE DRAWING MACHINE V. F. BRUCE & H

APPLICATION FILED 00122, 1908.

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No. 863,149. PATENTED AUG. 13, 1907. V. P. BRUCE 60H. 8. BJUHR.

MULTIPLE WIRE DRAWING MACHINE.

APPLIOATION IILED DOT. 22,1906.

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VICTOR. F. BRUCE AND nose SWANSON BJUHR, OF WORCESTER, MASSACHUSETTS.

IVE ULTIPLE-WIRE-DRAWING- MACHINE.

Specification of Letters Patent.

Patented Aug. 13, 1907.

' Application filed October 22, 1906. Serial No. 339,936.

by means of dies and drawing heads; the principal object thereof being-to provide such an arrangement of dies, drawing heads, and guide rollsthat the machine will not be limited, as is usually the case at present,to the treatment of a single wire, but may be employed for simultaneoustreatment of a large number of wires if desired.

Further objects of the invention are to provide for taking each wirefrom the last die of the series through which it passes to the blockframe, and winding the whole series in a convenient and efficientmanner, passing the wires across the space between the drawing heads andwinding blocks at a short distance apart so that the drawing mechanismsfor the several Wires can be located compactly and driven from a singlesource of power, the blocks also being driven from the same source ofpower, and generally to improve the construction and operation of wiredrawing machines of this general character.

Reference is to be had to the accompanying drawings, in which Figure lis a plan of that portion of a wire drawing machine on which the drawingheads are located, showing one embodiment of our invention. Fig. 2 is aplan of the end of the same and of the block showing the connectionbetween these two parts of the machine, and Fig. 3 is a plan on'anenlarged scale showing the course of the wire through one ofthedrawing-units.

Referring first to Fig. 2, the main driving or power shaft 10 is shownhaving a gear 11 thereon. This shaft passes from one end of the blockframe 12 to the other, and transmits power from the gear 11 to a gear 13on a driven shaft 14. This driven shaft, either in a single piece or insections, extends from one end of the drawing frame to a point beyondthe other end thereof, and is provided with a gear 15 supported by theblock frame. This gear operates side gears 16 which are located onshafts 17 carrying bevel gears 18 for operating vertical shafts 19, oneach of which is located a block 20. On the shaft 14 is also located aseries of bevel gears 21 for operating horizontal shafts 22. Each of theshafts 22 carries a drawing head 23 which may be of any desiredconstruction, but is preferably of the stepped form, ordinarilydesignated as conical. Each of the drawing heads 23 is accordinglypositively rotated, and adjacent to it is located a stud 24 on which isloosely journaled a guide roll 25 having a number of groov:.

corresponding to the number of steps on the draw inghead. Between eachhead and roll is a die-holder 26 provided with a series of dies. Thecourse of the wire through each one of these units is shown in Fig. 3.It is drawn from a source of supply as areel or the like, through thefirst die of the series in the die-holder directly on to the smalleststep of the drawing head. It is passed one or more times around thisstep and then back to the first groove through the guide roll, and

, from there through the next die of the series, and to the next step ofthe drawing head, and so on in repetition until from the last step ofthe drawing head it passes back to the last groove of the guide-roll,and from this through the last die of the series, and then over to theblock frame where it is wound up by the corresponding block 20. Oneblock is provided for each of the drawing units consisting of adrawing-head, guide-roll, and die-holder.

By observing the course of the wire through the drawing-head andguide-roller, as shown in Fig. 3, it will be observed that aconstruction has been adopted in which the number of steps on thedrawing-head, and

the number of grooves on the guide-roller is the same,

and that th number of dies exceeds this nulnbcr by one. The wirepa's se's 1 1 9; 15Q1nallest step of the drawinghead through a die withoutfirst passingover the guide roll, and the offsetting of the guide rollpermits the withdrawal of the wire from the last groove of theguide-roll through a die without passing over an additional step of thedrawing-head.

7S ow by reference to Fig. 1, it will be seen that each of the drawingunits is arranged in this way, and moreover, that each unit is offsetfrom the next one a sufiicicnt distance to permit the wire drawn fromthe one in the rear to pass adjacent to the end of the next unit infront, and parallel with the wire drawing-frame to the correspondingreel of the block. This arrangement is secured by placing the bearingsfor the drawingheads and guide-rollers on a rail located at an anglewith respect to the shaft 14. This angle can be duplicated on the twosides of the machine, and consequently, a plurality of wires can bedrawn simultaneously on the same machine without interfering with eachother, and without increasing the size of the machine even approximatelyin any proportion to the space which would be occupied by acorresponding number of the machines as they have heretofore beenconstructed. 1

It is to be noted that there is a double offset, each drawing-unit beingoffset from the next one, and each drawing-head being offset from itsguide-roll. By this double arrangement the advantages in space aresecured.

It is to be noted that the shafts 17 are located at an angle similar tothat of the rails on which the bearings for the drawing rolls are set,and that the blocks diverge I in a similar manner; consequently, thewires pass from the drawing machine to the block frame in substantialparallelism with each other so that they cannot interfere with eachother, and yet very little additional space is occupied by them.

While we have illustrated and described a particular form in which weprefer to embody our invention, we are aware that modifications may bemade therein by any person skilled in the art, and that other forms ofdrawing and guide rolls can be adopted without (hi parting from thespirit of our invention as set forth in the claims.

Therefore, we do not wish to be limited to the particular constructionsillustrated and described, but

What we do claim is:-

1. In a wire drawing machine, the combination of a series of dies,adrawing head adapted to receive wire directly from one, at least, ofsaid dies, means for positively driving said head, a guide roll adaptedto receive wire from said head and deliver it to another die of theseries, the axis of the opening in the last die of the series beinglocated in a plane which is at right angles to the axis of rotation ofthe drawing head and which plane is past the end of the drawing head,the said last die adapted to receive the wire from the guide roll.

2. In a wire drawing machine, the combination of a series of dies, aconical or stepped drawing-head receiving wire directly from a source ofsupply through one of said dies, means for positively driving one ofsaid heads, a loosely journaled conical guide-roll receiving wire fromsaid head and delivering it to the next step of the head through anotherdie of the series, and receiving it back on another step, and means fordrawing the wire from the last step of the guide-roll through the lastdie of the series and past the end of the drawing-head.

3. In a wire drawing machine, the combination of a shaft, a plurality ofdrawing heads, each positively driven from said shaft, all ofsaid headsbeing of the same length and each extending beyond the end of, andfarther from the shaft than, the one in front, a plurality of looselyjournalcd guide-rolls, each corresponding with one of said heads, andmeans for drawing wires onto the heads and alternately over the guiderolls, and from the last groove of each guide-roll past the next guideroll and head and out of contact therewith.

4. In a wire drawing machine, the combination of a plurality of wiredrawing units, each driven from the same source of power. and eachoffset from the one in front,

whereb v wires drawn from said units will pass the next of the units infront without interfering therewith.

3. In a wire drawing machine, the combination of a pluralit'y of wiredrawing units, each driven from the same source of power, and eachoffset from the one in front, whereby wires drawn from said units willpass the next of the units in front without interfering therewith, eachunit comprising a drawing head, a guide-roll, and a set of dies. thedrawing-head being offset from the guideroll in the same directionthatthe unit is offset from the unit to the rear.

'6. in a wire drawing machine, the combination of a series of wiredrawing units, each one being offset from the one in front, a series ofblocks offset in reverse order, and means for driving said wire drawingunits and said blocks from the same source of power, whereby the wiredrawn from the units will be wound upon the blocks and will extend fromeach unit to its block in parallelism with the other wires and out. ofengagement with the other Wires, units. and blocks.

In testimony whereof we have hereunto set our hands, in the presence oftwo subscribing witnesses.

IIUGO SWANSON BJUHR. VICTOR F. BRUCE.

Witnesses Annmz'r E. FAY. Louis W. Sournexrn.

